I'm facing an issue with codable. I'm not able to understand how to init custom timer object in codable class.
class ShelfItem: Codable {
var objTimer = Timer()
or i try to do it like
// var objTimer: Timer()
}
but it show me the error that is "Type 'ShelfItem' does not conform to protocol 'Encodable'"
It makes no sense to en-/decode a Timer object.
To exclude objTimer from encoding add CodingKeys for the other properties and omit objTimer.
Simple example (in most cases you don't even need a class)
struct ShelfItem : Codable {
let name : String
var timer : Timer
private enum CodingKeys : String, CodingKey { case name }
init(from decoder : Decoder) throws
{
let container = try decoder.container(keyedBy: CodingKeys.self)
name = try container.decode(String.self, forKey: .name)
timer = Timer()
}
}
Timer instance. Create it in the initializer when decoding the JSON/Property List.
var objTimer = Timer()doesn’t make sense (a timer with no handler and no specified time to fire). Andvar objTimer: Timer()is just syntactically incorrect. But let’s set that aside and ask what you’re expecting to be encoded: As vadian said, it doesn’t make sense to encode/decode aTimer, itself, so you’d either exclude it from coding or take the unusual step to encode/decode enough so the timer could be reconstituted later (which is a strange notion with timers). Perhaps you can describe why you’re trying to encode/decode a timer and describe what you’re hoping to achieve.